/Engine/Plugins/Runtime/Steam/SteamSockets/Source/SteamSockets/Public/SteamSocketsNetDriver.h
Initialize the network driver in server mode (listener)
true if successful, false otherwise (check Error parameter)
virtual bool InitListen ( [FNetworkNotify](API\Runtime\Engine\Engine\FNetworkNotify) * InNotify, [FURL](API\Runtime\Engine\Engine\FURL) & ListenURL, bool bReuseAddressAndPort, [FString](API\Runtime\Core\Containers\FString) & Error )